Evaluation of adhesive performance of a mixture of soy, sorghum and canola proteins

Interest in canola (Brassica napus L.) In response to this interest, scientists have been tasked with altering and optimizing the protein production chain to ensure canola proteins are safe for consumption and economical to produce. Specifically, the role of plant breeders in developing suitable varieties with the necessary protein profiles is crucial to this interdisciplinary endeavour. In this article, we aim to provide an overarching review of the canola protein chain from the perspective of a plant breeder, spanning from the genetic regulation of seed storage proteins in the crop to advancements of novel breeding technologies and their application in improving protein quality in canola. A review on the current uses of canola meal in animal husbandry is presented to underscore potential limitations for the consumption of canola meal in mammals. General discussions on the allergenic potential of canola proteins and the regulation of novel food products are provided to highlight some of the challenges that will be encountered on the road to commercialization and general acceptance of canola protein as a dietary protein source.

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Adhesive Performance of Acrylic Pressure-Sensitive Adhesives from Different Preparation Processes

Polymers ◽

10.3390/polym13162627 ◽

2021 ◽

Vol 13 (16) ◽

pp. 2627

Author(s):

Irene Márquez ◽

Núria Paredes ◽

Felipe Alarcia ◽

José Ignacio Velasco

Keyword(s):

Average Particle Size ◽

Gel Permeation Chromatography ◽

Shear Resistance ◽

Deformation Energy ◽

Average Particle ◽

Scanning Calorimetry ◽

Pressure Sensitive Adhesives ◽

Pressure Sensitive ◽

Monomeric Composition ◽

Adhesive Performance

A series of pressure-sensitive adhesives (PSAs) was prepared using a constant monomeric composition and different preparation processes to investigate the best combination to obtain the best balance between peel resistance, tack, and shear resistance. The monomeric composition was a 1:1 combination of two different water-based acrylic polymers—one with a high shear resistance (A) and the other with a high peel resistance and tack (B). Two different strategies were applied to prepare the adhesives: physical blending of polymers A and B and in situ emulsion polymerization of A + B, either in one or two steps; in this last case, by polymerizing A or B first. To characterize the polymer, the average particle size and viscosity were analyzed. The glass transition temperature (Tg) was determined by differential scanning calorimetry (DSC). The tetrahydrofuran (THF) insoluble polymer fraction was used to calculate the gel content, and the soluble part was used to determine the average sol molecular weight by means of gel permeation chromatography (GPC). The adhesive performance was assessed by measuring tack as well as peel and shear resistance. The mechanical properties were obtained by calculating the shear modulus and determination of maximum stress and the deformation energy. Moreover, an adhesive performance index (API) was designed to determine which samples are closest to the requirements demanded by the self-adhesive label market.

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Effects of canola proteins and hydrolysates on adipogenic differentiation of C3H10T/2 mesenchymal stem cells

Food Chemistry ◽

10.1016/j.foodchem.2015.03.054 ◽

2015 ◽

Vol 185 ◽

pp. 226-232 ◽

Cited By ~ 4

Author(s):

Adeola M. Alashi ◽

Christopher L. Blanchard ◽

Rodney J. Mailer ◽

Samson O. Agboola ◽

A. John Mawson ◽

...

Keyword(s):

Stem Cells ◽

Mesenchymal Stem Cells ◽

Adipogenic Differentiation ◽

Canola Proteins

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Deriving Commercial Level Adhesive Performance from a Bio-Based Mussel Mimetic Polymer

ACS Sustainable Chemistry & Engineering ◽

10.1021/acssuschemeng.9b02547 ◽

2019 ◽

Vol 7 (15) ◽

pp. 13315-13323 ◽

Cited By ~ 9

Author(s):

Heather M. Siebert ◽

Jonathan J. Wilker

Keyword(s):

Adhesive Performance

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Influence of the Chemical Structure of Functional Monomers on Their Adhesive Performance

Journal of Dental Research ◽

10.1177/154405910808700804 ◽

2008 ◽

Vol 87 (8) ◽

pp. 757-761 ◽

Cited By ~ 150

Author(s):

K.L. Van Landuyt ◽

Y. Yoshida ◽

I. Hirata ◽

J. Snauwaert ◽

J. De Munck ◽

...

Keyword(s):

Bond Strength ◽

Dissolution Rate ◽

Chemical Bonding ◽

Chemical Structure ◽

Calcium Salt ◽

Atomic Absorption Spectrophotometry ◽

Functional Monomer ◽

Functional Monomers ◽

Chemical Structures ◽

Adhesive Performance

Functional monomers in adhesive systems can improve bonding by enhancing wetting and demineralization, and by chemical bonding to calcium. This study tested the hypothesis that small changes in the chemical structure of functional monomers may improve their bonding effectiveness. Three experimental phosphonate monomers (HAEPA, EAEPA, and MAEPA), with slightly different chemical structures, and 10-MDP (control) were evaluated. Adhesive performance was determined in terms of microtensile bond strength of 4 cements that differed only for the functional monomer. Based on the Adhesion-Decalcification concept, the chemical bonding potential was assessed by atomic absorption spectrophotometry of the dissolution rate of the calcium salt of the functional monomers. High bond strength of the adhesive cement corresponded to low dissolution rate of the calcium salt of the respective functional monomer. The latter is according to the Adhesion-Decalcification concept, suggestive of a high chemical bonding capacity. We conclude that the adhesive performance of an adhesive material depends on the chemical structure of the functional monomer.

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The Buckling and Postbuckling of Fibrils Adhering to a Rigid Surface

Journal of Applied Mechanics ◽

10.1115/1.4023107 ◽

2013 ◽

Vol 80 (4) ◽

Cited By ~ 3

Author(s):

Sebastian Stark ◽

Matthew R. Begley ◽

Robert M. McMeeking

Keyword(s):

Aspect Ratio ◽

Numerical Results ◽

Rigid Surface ◽

Displacement Control ◽

Load Displacement ◽

Adhesive Performance

Recent experiments in which arrays of compliant fibrils are compressed axially against a rigid surface and then released have shown that there is load-displacement hysteresis during this process, accompanied by buckling and unbuckling of the fibrils. Furthermore, the adhesive performance of the system is decreased by such prior buckling. We present a model describing the buckling and postbuckling characteristics of a fibril with an aspect ratio of 10 or greater. The possibility during buckling of partial detachment of the end of the fibril is taken into account. The results are presented and discussed for both load and displacement control and the load-displacement hysteresis is identified. It is found that due to instabilities sudden spreading and shrinkage of the adhered area at the end of the fibril can accompany the hysteresis. Numerical results are provided to substantiate the findings and possible reasons for the observed influence of buckling on adhesive performance are reviewed.

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